Peak concentrations of phentermine are reached within three to four hours. Studies have shown that, on average, phentermine helps people lose approximately one extra pound per week. The rate of weight loss is greatest in the first few weeks of therapy.
How long does phentermine stay in my body? Phentermine is a long acting medication. While its peak appetite suppressant effect occurs after an hour or two, in most cases it remains effective for 6 to 8 hours or longer. Its takes more than 24 hours for the medication to be completely eliminated from the body.
Peak concentrations (Cmax) are reached in 6 hours for phentermine and 10 hours for topiramate. The half-life is 20 hours for phentermine and 65 hours for topiramate.
Insomnia
Trouble sleeping is another common side effect of this medication. Phentermine is considered a stimulant, and it can cause you to become more alert and energetic. This can make it harder for you to fall and/or stay asleep.
Dosage Of Phentermine
It would be preferable to take the doses during working hours rather than before bed because it can keep you awake all night.
Phentermine suppresses appetite and increases your metabolic rate so you feel less hungry and burn more calories. It works by raising your noradrenaline levels which increases your sympathetic nervous system (“fight or flight”). There is a lot of variability in the older trials of Phentermine.
You will likely notice a decrease in appetite within three to five days of taking the medication. However, it may take a week or two to see the full effects of the medication on appetite suppression and weight loss.
When starting out, one per day dosing is usually adequate for good all-day hunger control. We usually recommend taking the Phentermine at about 9 or 10 am, so that it has taken effect by lunchtime, lasts through dinner, and yet still wears off by bedtime to allow for sleep.
To avoid trouble with sleeping, take the last dose of the day about 4 to 6 hours before bedtime, unless your doctor tells you otherwise.
95% of patients who use Phentermine experience positive results, with an average weight loss between 4-8 pounds per month.
Depending on your lifestyle and the changes you make once you start, it's possible to lose several pounds the first week as your body sheds water weight. That being said, the recommended weekly rate of weight loss is one to two pounds.
For example, phentermine may raise blood pressure and cause a faster heartbeat. It can also cause trouble sleeping. Alcohol can have all these effects as well. It's best to avoid drinking alcohol while taking phentermine.
Coffee does not directly interact with phentermine or affect its mechanism of action. However, coffee does contain caffeine, which is a stimulant that can increase heart rate and blood pressure. Phentermine also increases heart rate and blood pressure, so combining the two may cause these effects to be more pronounced.
Phentermine is a once a day medication that should be taken first thing in the morning. Taking the medication on an empty stomach or with food is not as important as making sure to take it early in the day. One of the side effects of phentermine is energy and focus which can lead to insomnia or trouble sleeping.
Phentermine is best taken in the morning before breakfast or 1-2 hours after breakfast. Taking it later in the day can cause insomnia or difficulty falling asleep at night. Also, taking phentermine on an empty stomach can increase its effectiveness.
In addition, this medication stimulates the release of the neurotransmitter, adrenaline (epinephrine), which stimulates the breakdown of stored fat. Therefore, phentermine promotes weight loss by reducing appetite, increasing energy and boosting fat breakdown (5).
Take Duromine first thing in the morning, at breakfast time so that it does not keep you awake at night. Taking Duromine at the same time each day will have the best effect. It will also help you remember when to take it. It does not matter if you take this medicine before or after food.
We recommend that you accompany the phentermine with a 1500-calorie diet with 20-25 grams of fat per day. We have American Diabetes Association diets to help you plan your meals – or you may prefer to use Weight Waters or NutriSystem meals. Exercise is an important part of the diet regimen.
More specifically, one-third of all users regained their lost weight within a year after treatment discontinuation. While phentermine may help one achieve short-term weight loss, it achieves this without building healthy habits. Thus, weight rebound is likely to happen.
You lose weight even without exercise because you use more calories every day. This is why phentermine is a good choice for people who want to lose weight quickly and safely. Phentermine also increases the release of norepinephrine in your brain, which helps boost your metabolism.
Phentermine Results after 1 Week
For someone taking phentermine for weight loss in low doses i.e. 15mg/day, they could lose around 7.8 pounds within the first week. The higher dosage takers with diet plans and regular workouts lost around 18 pounds.
This medicine may cause some people to be agitated, irritable, or display other abnormal behaviors. It may also cause some people to have suicidal thoughts and tendencies or to become more depressed. If you or your caregiver notice any of these side effects, tell your doctor right away.
Why am I tired on Phentermine? Fatigue or tiredness can come as a result of sleepless nights or following a period of over-stimulation, however, adverse effects of phentermine also include drowsiness, fatigue, and reduced energy levels.
Phentermine is a good medication that speeds up your metabolism. As you burn more calories throughout your day, you lose weight even if you aren't exercising. This makes phentermine an ideal choice for people who are looking to lose weight quickly and healthily.